for Atom and RSS and KML
It looks like this is a web page, not a feed. I looked for a feed associated with this page, but couldn't find one. Please enter the address of your feed to validate.
<!DOCTYPE html><html lang="en-US"><head><title>Just a moment...</title><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta http-equiv="X-UA-Compatible" content="IE=Edge"><meta name="robots" content="noindex,nofollow"><meta name="viewport" content="width=device-width,initial-scale=1"><style>*{box-sizing:border-box;margin:0;padding:0}html{line-height:1.15;-webkit-text-size-adjust:100%;color:#313131;font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,Noto Sans,sans-serif,Apple Color Emoji,Segoe UI Emoji,Segoe UI Symbol,Noto Color Emoji}body{display:flex;flex-direction:column;height:100vh;min-height:100vh}.main-content{margin:8rem auto;max-width:60rem;padding-left:1.5rem}@media (width <= 720px){.main-content{margin-top:4rem}}.h2{font-size:1.5rem;font-weight:500;line-height:2.25rem}@media (width <= 720px){.h2{font-size:1.25rem;line-height:1.5rem}}#challenge-error-text{background-image:url(data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSIzMiIgaGVpZ2h0PSIzMiIgZmlsbD0ibm9uZSI+PHBhdGggZmlsbD0iI0IyMEYwMyIgZD0iTTE2IDNhMTMgMTMgMCAxIDAgMTMgMTNBMTMuMDE1IDEzLjAxNSAwIDAgMCAxNiAzbTAgMjRhMTEgMTEgMCAxIDEgMTEtMTEgMTEuMDEgMTEuMDEgMCAwIDEtMTEgMTEiLz48cGF0aCBmaWxsPSIjQjIwRjAzIiBkPSJNMTcuMDM4IDE4LjYxNUgxNC44N0wxNC41NjMgOS41aDIuNzgzem0tMS4wODQgMS40MjdxLjY2IDAgMS4wNTcuMzg4LjQwNy4zODkuNDA3Ljk5NCAwIC41OTYtLjQwNy45ODQtLjM5Ny4zOS0xLjA1Ny4zODktLjY1IDAtMS4wNTYtLjM4OS0uMzk4LS4zODktLjM5OC0uOTg0IDAtLjU5Ny4zOTgtLjk4NS40MDYtLjM5NyAxLjA1Ni0uMzk3Ii8+PC9zdmc+);background-repeat:no-repeat;background-size:contain;padding-left:34px}@media (prefers-color-scheme:dark){body{background-color:#222;color:#d9d9d9}}</style><meta http-equiv="refresh" content="390"></head><body class="no-js"><div class="main-wrapper" role="main"><div class="main-content"><noscript><div class="h2"><span id="challenge-error-text">Enable JavaScript and cookies to continue</span></div></noscript></div></div><script>(function(){window._cf_chl_opt={cvId: '3',cZone: "u0domf.mit-edu.top",cType: 'managed',cRay: '90fb375defca2d10',cH: 'TFe5gj8fWd3A8wVQkDROMZF_8bqkNcrC5V1iM8aIAEU-1739181250-1.2.1.1-rySp8UxoHKCrbUbfzyNAXVjFfndWXZTDP4ZPyJWkFkBXFiRU92wpq207mK492gho',cUPMDTk: "\/post\/7364218509?__cf_chl_tk=lkSIQREuw_lBBvJXXYaXrWCTDMNE1CPtGFazCscXBG4-1739181250-1.0.1.1-9IHTzOKKCtoMViVmcdR3eMnvzW.fuVhr8DAfIu9xLLk",cFPWv: 'g',cITimeS: '1739181250',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/7364218509?__cf_chl_f_tk=lkSIQREuw_lBBvJXXYaXrWCTDMNE1CPtGFazCscXBG4-1739181250-1.0.1.1-9IHTzOKKCtoMViVmcdR3eMnvzW.fuVhr8DAfIu9xLLk",md: "cVNurx2vPYm3nhe7tVjkXxHgWVAZ1xVQMnie_1w1Bv0-1739181250-1.2.1.1-Vh3WiWEONIUk2v0A0FhFMFfYHuMbT1bW1ShcvLprfR.ER22VRvpMJvxc89NXh5mnKGrkEjImdv8xRrD7pCyOC525TepXaNbPD7oM7T5tnmSdWYRpuSOLR1pIUxjHCfpKZnRI0lN4uhCLjFr8GptYtf2pnYrqAxqdQScoDegGY5_3OqVmZxmAgXj2g1PEaV1HkG1WpS9sqpaoJTYwgvU.uDmRm7wvQJcz2QC9KPQDbaVkVLVOiNj7OhlN8wB8eVb9ogXO4gvidGSSBmMLUotRp0zenBLbTTWt0UvF6eBFK1g2Z3fQhidg29cr5WrLt4WQQ2lVNJyfTwSiVjciJ.KkCUYTVdQNCcISyZ6N2cgr_8EjD38AEhRrFXs_E29yAEyIjlDInDmw6QVsApE6Qd5jhJ5xXY0jKZdktF.vhml_Kk.MhITIyWysjOjwmrV1XQ6BlqEZPWXOUl0OrbopkgsMAKuDZYTXFNVWmip3YYvDyw7._G2nsHESpMWVIIY8.EGaAbIJS8NHQN9lcTfLzv5Ik8EsaEwh5utm1BXxT5.lSovpPPh3DpETYTbDyWbg9II4A5VGwkZnnFcEBjcFPtKauraCqL4Nz9s9XNzOAIKonld2YajWHXUCXrQUxZNGgVuw7vjKzVOmZ6XQXr8d2c7rXodsmFrLkLZk2IrE54tjj5cLdvBMIHOXFDGDGwrZ31mEPEcFPRMzMev9iYvtobWVrQmHdk63EN22RAgpUcOAwxq.tm3s8JuxwDly8N89l3atZchLKHx0P4pl0i6MFKU7btk9l1YWyGhnxjLKYGtOclbKFAePoNNbX995adHCgA5lhfbI5cQZBts_3bvSH3vml86JWZqzbj0SSk1uOq1P9bNAkhLjqVRsYGBekyuNmsMqvSzj681yIyvbptav3j92ZvfURKO5NKi5toepow6sQZ4VrSCuq3V8rcxTOdDz.2WCpQFOzXCmRr9kVmJ5cqIPB_SWzWqxM2yG_ZQqPM1NGmScayr.WKXNHl4xaYBhnXhjAx7.KZcCjsPpsCJ9u4ajXrxnF2f9LAN27YoDH1LUJWA.6411oOhO71KTjWKJAOzcEjTOmV47yFB8gFF2k_yTgkynW.c6QSK5U4Wd5Bfinv2g_.fkWOT_UWilZ_lDEyH6psQpdi2X4DbYbRw..w8huXDgqB775mjKohiDEPkeYd2aqHRzL_1Q5PZkCPMq21Fdsun6rWsEciWaJqAeIE6wpnnla3UQaDJeeV5LniF7lSRzeBr3Pb8zUcgvdGQGM_ylDyq7ZjskZZLWrlbUtXeLF7oHZq5oyNCvMAPZy4V4dDW8pqoFyYl4K7DnemgCFKaj5GlSjAmTlmioECj4MJQoDV1Y1ZyZDISxXWmig76_WUMcfHaY9d8l1AgQYu1MMxdA8lBs3EdBW0rSIkhurGhTBi3mh64MwrIQA1T5MTh5O4.h7d.gH143NDuf2ExbRNy2Qcd0ocEFxEmc.X6gNmafsSYvSpAx4BhXku0yaE8TiOaQkkAMNUABCJeYgGamqJMZxEZWsool.LEnSROMf16tsngjWyaOawtgKsQkICeU154.qAK4eWCKT9OoaVe1cu4sYNj22fshgCFV_BJ3HOKnWU8AaI4KljcVGDj0IjGrQkht6mDRkw2T_9Rp4Xv76hxKVLBqDRJd2RwzEfoGOvx4915rxBI.6FXmkZYWxTrE3drpOvKpzXpK65a42sFaSHgfoqDB6wYFur_iZ6uE.mQr7mcy5EQTaDFag6mwdZcGnqs3YABXXs8ISZXgXc8dDcaQVpJ2QPBFur5UiHBIwsclwE5khm_cyhPJQsV4kiy101i9FA3crdpV0w8yFu3Gc7BPzJcCj0lGvG59EUNxkK12KN06yJ7HKRPBQkPDBfGKYjpODKTaH9EMyyTs86NsGrBRpS8wcF6Y6PKUB28ybbgSekcGDSQa5.MpwOvuaBsgr4xjzcxj.iMZfg_cJDdi1ZGOTmRzqC03pQU2HHys1qXL9HaskdCs4nhqB8BIm7vNw9.jcu7M1E3UEm0e_gyZjC4MZLjn1sR.MfLWCz6mfBJL87twwRTukeNyVA9Zb3d4HvJoT97nn2Io01v0yvSiPVr.SG3TQr2.fnxM_Zp7wUQUMG1fyRmq3ZtS5pxW9NVJa9gxb74N8aIhKJTdYwdDf_Z8DMLZSHUhU8gKNRGhQjx7g4QVTnm2Mc6wBB5bHapDqVM",mdrd: "Tpw8.LPgbWCQbcJqVHBrrPcTwrVJqUxg9YcXMyg8oUw-1739181250-1.2.1.1-mukEQX_d6AUHoUG3vprI1td8Y9lkchSpamwzE9Wd2IfooXTti2j5YwYYTNo0vwhOlQoRbEBS1_DI16FLXteQqqTgM1RDK8cA93W50.E6hcTtKZbxnazb0aQdzEXbnA0uvxCc1gOUZTt5a9W4upQrmb5.fPjBTk287fFaTfpH6bsepF7vNWZX9M_Tj_mofhW20atW_3AuC18t0_NLY_SZqPqqO7U.v1eJGUkEEDc4jBHECsH5CleBIlXIlQcIA_rxv_eX_vUqenkq4QsiOGiflpIEhD.y9HJe6kT69fz7ZHqbtq8BMJHiCxlwh2ugbiFkwwhezT6B_y0H8PyJ9PrTnwTyT4usosigRsYLsx6Leo2IXaJzuHqONd06iUmF2Yy32HmorVfjvn0OucAl6obRt2vd4s4GqorP56CxtL_pptwdOvxUVhTaoN1s.muw4jsY6tPAMPCqt7B90X5_3MX7BVReZKwi8VWQo5zysx2yImwwI.JwQ6_uka3Bd8VMX4MGTWYxFPAjjerJ2CSvhMlovLcwBjqKdmQmgUtOvjY3DTDI8VMq44waebohw5a4M5L9fJVAnKaCdQUWeQyyEKr97wddQMpdwX2zdCKsblHQ54lm_PQfJYn7pW6rAOH4uRsozXRFdUFi3DgDQ.YVK5XPo0I3BeEIi9VYXyQgs186AHPW6dcTcZR3I6B7Lu9vDkzu.KoxXLVy0kRTkqEHfOkY7smw4TDq5mk5HKvoYPT5__F1yYM7w1Cvszl8Pqgsnl9J3bz7VwGaAum2lg0YAp3aUKyRfsFSm_AZJswrFnci.xpFowKsTEUFXc6M15iF_qsQQpqGMJOQ2o6DX7Xnwi9hNxuBwXfMX2uNWe2A4ibbuOmaKaKV5zphQQ_MRwFTVrWG2dnQDv3ZN4I2Ko2oCwuFcxSMrpf0KW_W6GeLWvcgUR25OqhML0yhXP4LM8F.KHeGJzmKSXp5p5vcXf0mxnGTOC6ERUVlFzQRZNXNDNWMeERau7trYbogZqDXXEK8GVFPeseZmiap2hWN30UlO2eetwROpD329OVHGVKpXmzSeg0S7HbzF6c5HzcfgW9wOeAt3J4rJfZdMaiipfuhKFd0OVdSRGH4slaebz_gGl0T8c13Foe7bJRgv3K0e1m3NSuLsdjJk7Ca2FVnb_YujYCtLxsleQdUxgVWZWcEQuVHqGG460ERNk9c9BHG..Vg_WQ2KBrxXcPphA_juQWVL5BkI2kDsCa2BWySuzoH9N8RqwEkwHMxjXOo3tEdstHbOvXaheqsnX0BgZvmsQSD_fn3OCdrMMPIHuOItmX.z39W6rQDwsfS2rhZUBqUZsaPRTAGnlzjrB1irKrKSJDkUSPp0oQNXzp1ZEbV2lnT_9fxd8UOgtAQJXwPz.pTZ6XwnU3ulYX9bHhPYoi2Qmva7TApOqh6v1mtc8.zete92R6YJfawmm1YstBOt25ykyRXPtsqO.2brmRIL2e4PX7DycxkBnWNWU.zYV74dDDvgBgHvdNVrR_gm.FfxI8cuom3W4hxKr5YbHNZ_P_y6W7niDuolp0Ye0qLidDSwBO3Du7iP.bywRfPdqnOO.ZY4oNhimUVk1p74csZl6O8KvSr.YYXwsfx9txKGHVuGVgHA87O_tIs3Nv_7xTaTDaRiyXhUBGfSG3tO84nojnpTYdZ.yKyLl03wgrNDIbGFG8MQgh_kSCZCI6FL1VydA3x3LWYIiJuUpyxDwP1stqNxl_fkBTxnXCBJ_mHNZWH3uWfIzmyJCU"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90fb375defca2d10';window._cf_chl_opt.cOgUHash = location.hash === '' && location.href.indexOf('#') !== -1 ? '#' : location.hash;window._cf_chl_opt.cOgUQuery = location.search === '' && location.href.slice(0, location.href.length - window._cf_chl_opt.cOgUHash.length).indexOf('?') !== -1 ? '?' : location.search;if (window.history && window.history.replaceState) {var ogU = location.pathname + window._cf_chl_opt.cOgUQuery + window._cf_chl_opt.cOgUHash;history.replaceState(null, null, "\/post\/7364218509?__cf_chl_rt_tk=lkSIQREuw_lBBvJXXYaXrWCTDMNE1CPtGFazCscXBG4-1739181250-1.0.1.1-9IHTzOKKCtoMViVmcdR3eMnvzW.fuVhr8DAfIu9xLLk" + window._cf_chl_opt.cOgUHash);cpo.onload = function() {history.replaceState(null, null, ogU);}}document.getElementsByTagName('head')[0].appendChild(cpo);}());</script></body></html>
Home · About · News · Docs · Terms